50mm Rockwool Full Fill Cavity Batt Insulation

For over 30 years, 50mm Rockwool Full Fill Cavity Batt Insulation has delivered reliable thermal performance for cavity wall insulation in new builds and extensions across residential and commercial properties. This 50mm stone wool insulation provides effective moisture resistance and sustained insulation performance.

The 50mm Rockwool Full Fill Cavity Batt offers an effective and economical solution for new masonry cavity walls. With BBA certification for full fill cavity wall insulation, it substantially reduces the thermal transmittance (U value) of external cavity walls featuring masonry construction on both sides.

Its lightweight composition enables straightforward installation and handling. The product fits securely within brick and blockwork cavities, easily accommodating surface irregularities and variations in cavity dimensions.

Product specification

• Model: 50mm Rockwool Full Fill
• Thickness: 50mm
• Width: 455mm
• Length: 1200mm
• Pack Quantity: 12
• Board Coverage: 0.55m2
• Pack Coverage: 6.55m2
• Density: 38kg/m3
• Weight/m2: 1.9kg
• Weight: 12.45kg
• Thermal Conductivity: 0.037W/mK
• R-Value: 1.35m2K/W
• Fire Rating (Reaction to Fire): A1(Non-combustible)
• Application: Full Fill Cavity Wall
• Type: Stone Woll Insulation
• Product standards: BS EN 13162, Keymark, Kitemark
• CE Marking: CE Marked
• BBA Approved: Certificate 94/3079
• Water Repellent: Water Repellent

50mm ROCKWOOL Full Fill insulation naturally resists water absorption, matching the properties of the stone material from which it is manufactured. It also performs excellently in damp conditions, safeguarding the structural integrity and indoor environment of buildings over time.

Cavity wall insulation

Protecting cavities from weather exposure is essential for building durability. Water damage can compromise insulation effectiveness, but 50mm Full Fill Cavity Batts deliver a superior, water-resistant option for new construction, cavity wall insulation and extension projects.

Applications

50mm Rockwool Full Fill cavity wall insulation works well for thermal insulation in external masonry cavity walls and for delivering thermal insulation and sound dampening in masonry party walls separating residential units.

Approved by the British Board of Agrément (BBA) under Certificate 94/3079, 50mm rockwool Full Fill Cavity is suitable for all exposure zones in domestic and non-domestic buildings up to 25m high.

The NHBC (National House Building Council) recognises 50mm Rockwool Cavity Batt as appropriate for most applications, with the exception of highly exposed locations featuring fair-faced masonry. Installation, use, and maintenance must follow the specifications in the BBA Certificate, in accordance with NHBC Standards, Chapter 6.1, External Masonry Walls.

Acoustic Performance

Stone wool's random fibre structure and density effectively absorb sound waves and reduce vibration transmission, delivering significant noise reduction from external sources when installed in external walls.

50mm Rockwool Full Fill insulation retains its form and thickness throughout the building's lifespan, maintaining consistent acoustic benefits year after year.

More Information on 50mm Rockwool Full Fill Insulation

• Manufaturer Link: Rockwool Full Fill
• 50mm Rockwool Full Fill Insulation delivers high-performance thermal protection with multiple application options.
• Browse our complete Rockwool Insulation range and refine by thickness or coverage area using the filters on the left. For product suitability advice, quantity discounts, or a formal quotation, contact us on +4402038839057 , email sales@insulationbee or use our Live Chat - Competitive UK Rockwool Insulation Pricing.